FULL PRODUCT VERSION :
java version "9.0.1"
Java(TM) SE Runtime Environment (build 9.0.1+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.1+11, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux saber-ubuntu 4.4.0-45-generic #66-Ubuntu SMP Wed Oct 19 14:12:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
The Date String of Dutch Locale is changed from single D-M-YY to DD-MM-YY when month or day is just one number.

REGRESSION. Last worked in version 8u152

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
It can be always reproduced when convert data object to string with Dutch locale.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Test pass, the output string is 1-5-11
ACTUAL -
Test Fails, the output string is 01-05-11

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
Please use the test code below to reproduce the bug.

package edu.utsa.cs.test4incomp;

import java.text.DateFormat;
import java.util.Calendar;
import java.util.Locale;

import org.junit.Test;

import junit.framework.TestCase;

public class TestCalendar001 extends TestCase{
private static final Locale DUTCH_LOCALE = new Locale("nl", "NL");
@Test
public void testCalendar(){

Calendar cal = Calendar.getInstance(DUTCH_LOCALE);
cal.clear();
cal.set(2011, Calendar.MAY, 1);

final DateFormat dateFormat = getDateFormat(DUTCH_LOCALE);
if (dateFormat != null)
{
String value = dateFormat.format(cal.getTime());
assertEquals("1-5-11", value);

}
}

public DateFormat getDateFormat(Locale locale)
{
if (locale == null)
{
locale = Locale.getDefault(Locale.Category.FORMAT);
}

// return a clone because DateFormat.getDateInstance uses a pool
return (DateFormat) DateFormat.getDateInstance(DateFormat.SHORT, locale).clone();
}

}

---------- END SOURCE ----------